| 摘要 |
PROBLEM TO BE SOLVED: To provide a combining structure of a pipe and a coupling for improving pulling-out resistant force between a through pipe and a stop-end pipe. SOLUTION: One through fitting tube 1A and one to four pieces of stop-end fitting tubes 1B are crossed each other and connected with an end of a stop-end fitting tube by an interconnecting tube 1C. Adjacent through fitting tube and stop-end fitting tube are divided into a plurality of segments so that axes of both tubes are positioned on the same surface. Further, the coupling 1 connected with a bolt 4 and a nut 5 in which the adjacent segments pass through the interconnecting tube, and the through pipe inserted into the through fitting pipe and the stop-end pipe inserted into the stop-end fitting tube are combined together by tightening of respective segments with the bolt and nut. Projected ridges or projections arranged on an inner periphery of the through fitting tube are engaged with grooves or dents arranged on an outer periphery of the through fitting pipe. Projected ridges or projections arranged on an inner periphery of the stop-end fitting tube are also engaged with grooves or dents arranged on an outer periphery of the stop-end pipe. COPYRIGHT: (C)2004,JPO
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